Oil bottle heat transfer printing preheating mechanism
By using a dual preheating component design and preheating in stages, the problem of deformation and poor transfer quality caused by uneven temperature in oil bottle heat transfer is solved, achieving more uniform heat penetration and higher production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN UNIVERSAL OIL PTE LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-24
AI Technical Summary
In existing heat transfer printing technology for oil bottles, problems such as short preheating time and uneven temperature lead to bottle deformation and poor transfer quality.
It adopts a dual preheating component design, including electric heating elements and hot air ducts, to preheat in stages and gradually increase the temperature to reduce temperature difference and ensure uniform heat penetration.
It improved the uniformity of oil bottle preheating and the quality of transfer printing, reduced bottle deformation, and increased production efficiency.
Smart Images
Figure CN224545540U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a heat transfer preheating mechanism for oil bottles. Background Technology
[0002] As the core packaging container for liquid oils such as edible oil, lubricating oil, and industrial oil, oil bottles need to display brand logos, instructions for use, and decorative patterns on their outer surface through processes such as heat transfer printing and printing to meet the needs of product aesthetics, information transmission, and market competitiveness.
[0003] In existing heat transfer printing technology for oil bottles, the preheating process generally adopts a single preheating head design: that is, only one fixed preheating head (such as an infrared heating head, hot air nozzle, etc.) is set in the production line. When the oil bottle moves to the preheating position with the conveyor turntable, the preheating head heats its outer surface in one concentrated manner, and then it directly enters the heat transfer process. However, due to the limitations of the production line cycle time, the preheating time is usually only 2-5 seconds. In order to make the bottle surface reach the target temperature quickly, the initial preheating temperature needs to be set to a high temperature much higher than the target value. Especially for thin-walled plastic bottles, deformation is easily caused by a sudden temperature rise. Moreover, the short preheating time makes it difficult to achieve uniform heat penetration, which easily leads to a large temperature gradient on the bottle surface and uneven circumferential preheating, resulting in quality problems such as blurred transfer patterns and poor adhesion, which seriously restricts the product qualification rate and production efficiency. Utility Model Content
[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a heat transfer preheating mechanism for oil bottles.
[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: an oil bottle heat transfer preheating mechanism, including an electric turntable, on which four active sleeve shafts for coaxially mounting oil bottles are evenly distributed around the circumference of the electric turntable, a first preheating component is arranged directly below the bottommost active sleeve shaft of the electric turntable, and a second preheating component is arranged on the outer side of the leftmost or rightmost active sleeve shaft of the electric turntable.
[0006] The first preheating component includes an arc-shaped electric heating element, which is driven to be raised and lowered by a first adjustment component;
[0007] The second preheating component includes a hot air pipe for discharging hot air. The hot air pipe has a narrow strip-shaped air outlet on the end side near the oil bottle. The length direction of the air outlet is parallel to the axial direction of the oil bottle. The hot air pipe is driven by the second adjustment component to swing up and down.
[0008] The projected area of the electric heating element on its corresponding oil bottle is larger than the projected area of the air outlet on its corresponding oil bottle.
[0009] Preferably, a heat insulation plate is fixedly connected to the bottom of the electric heating element, a first connecting plate is fixedly connected to the bottom of the heat insulation plate, a second connecting plate is screwed onto the first connecting plate, and the bottom of the second connecting plate is fixedly connected to the frame.
[0010] Preferably, the first adjustment component includes a vertically extending first groove formed on the first and second connecting plates, and a bolt is threaded through the first groove of the first and second connecting plates, with a nut screwed onto the bolt.
[0011] Preferably, the internal vertical space of the hot air duct gradually narrows along the hot air flow direction, while the internal left and right space gradually widens along the hot air flow direction.
[0012] Preferably, the air inlet of the hot air pipe is connected to a hair dryer, and the hair dryer is fixedly connected to the base plate.
[0013] Preferably, the top, left and right sides of the hot air duct are protected by a U-shaped cover, and the bottom of the left and right sides of the cover are screwed and locked to the base plate.
[0014] Preferably, the second adjustment component includes an L-shaped swing plate, the top surface of which is fixedly connected to the base plate, and the portion of the top surface of which is hinged to a base frame via a hinge shaft near its corner. A fastening structure is connected between the base frame and the side of the swing plate.
[0015] Preferably, the fastening structure includes a screw, one end of which is hinged to the base frame, and the other end passes through a second groove on the side of the swing plate, with locking nuts screwed onto the screws on both sides of the second groove.
[0016] Preferably, the base frame is L-shaped, and stiffening ribs are fixedly connected between its vertical and horizontal parts.
[0017] Preferably, the end face of the electric turntable is located on a vertical plane and is driven by a first motor to rotate intermittently by 90°; the inner ends of the active sleeve shafts are all mounted on the end face of the electric turntable and are driven by a second motor to rotate; the outer ends of the active sleeve shafts are all suspended; the axial direction of the active sleeve shafts is parallel to the axial direction of the electric turntable.
[0018] Compared with the prior art, this utility model has the following beneficial effects: The oil bottle heat transfer preheating mechanism is provided with a first preheating component and a second preheating component. The first preheating component preheats the outer surface of the oil bottle in a first stage by using a first temperature, and the second preheating component further heats the outer surface of the oil bottle in a second stage by using a second temperature, which can achieve:
[0019] 1. The original single preheating head is used to concentrate high-temperature heating in one go, which is then divided into two gradient stages, so that the oil bottle gradually heats up under the first and second temperature gradients. When the oil bottle faces the higher second temperature, the temperature difference between the oil bottle and the second temperature is smaller because the oil bottle has already been preheated by the first temperature, making the oil bottle less likely to deform due to a sudden increase in temperature.
[0020] 2. The original single preheating head is divided into two gradient stages for centralized high-temperature heating. While the second preheating component is preheating the previous oil bottle, the first preheating component is simultaneously preheating the next oil bottle. This allows each oil bottle to undergo two preheating stages in a short preheating time (usually only 2-5 seconds), with gradual temperature increase. This facilitates uniform heat penetration in a short time and makes the circumferential surface of the bottle more uniformly preheated.
[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 1 .
[0023] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 2 .
[0024] Figure 3 for Figure 1 A magnified view of part A.
[0025] Figure 4 for Figure 1 A magnified view of part B.
[0026] In the diagram: 1. Electric turntable; 2. Oil bottle; 3. Active sleeve shaft; 4. First preheating component; 5. Second preheating component; 6. Electric heating element; 7. Hot air pipe; 8. Air outlet; 9. Heat insulation plate; 10. First connecting plate; 11. Second connecting plate; 12. Frame; 13. First groove; 14. Bolt; 15. Blower; 16. Base plate; 17. Cover; 18. Swing plate; 19. Hinge shaft; 20. Base frame; 21. Screw; 22. Second groove; 23. Stiffening rib plate. Detailed Implementation
[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0028] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0030] like Figures 1-4 As shown, this embodiment provides a heat transfer preheating mechanism for oil bottles, including an electric turntable 1. Four active sleeve shafts 3 are evenly distributed around the circumference of the electric turntable for coaxially mounting oil bottles 2. A first preheating component 4 is provided directly below the bottommost active sleeve shaft of the electric turntable, and a second preheating component 5 is provided on the outer side of the leftmost or rightmost active sleeve shaft of the electric turntable.
[0031] The first preheating component includes an arc-shaped electric heating element 6, which is driven to be raised and lowered by a first adjustment component;
[0032] The second preheating component includes a hot air pipe 7 for discharging hot air. The hot air pipe has a narrow strip-shaped air outlet 8 on the end side near the oil bottle. The length direction of the air outlet is parallel to the axial direction of the oil bottle. The hot air pipe is driven by the second adjustment component to swing up and down.
[0033] The projected area of the electric heating element on its corresponding oil bottle is larger than the projected area of the air outlet on its corresponding oil bottle.
[0034] The original single preheating head is used to concentrate high-temperature heating in two gradient stages, allowing the oil bottle to gradually heat up under the first and second temperature gradients. When the oil bottle faces the higher second temperature, the temperature difference between the oil bottle and the second temperature is smaller because the oil bottle has already been preheated by the first temperature, making the oil bottle less prone to deformation due to a sudden temperature rise.
[0035] The original single preheating head is divided into two gradient stages for centralized high-temperature heating. While the second preheating component is preheating the previous oil bottle, the first preheating component is simultaneously preheating the next oil bottle. This allows each oil bottle to undergo two preheating stages within a short preheating time (usually only 2-5 seconds), with a gradual increase in temperature. This facilitates uniform heat penetration in a short time and makes the circumferential surface of the bottle more uniformly preheated.
[0036] In this embodiment of the utility model, a heat insulation plate 9 is fixedly connected to the bottom of the electric heating element, a first connecting plate 10 is fixedly connected to the bottom of the heat insulation plate, a second connecting plate 11 is screwed onto the first connecting plate, and the bottom of the second connecting plate is fixedly connected to the frame 12.
[0037] In this embodiment of the present invention, the first adjustment component includes a vertically extending first groove 13 formed on the first and second connecting plates, and a bolt 14 is threaded through the first groove of the first and second connecting plates, and a nut is screwed onto the bolt.
[0038] By tightening or loosening the bolts and nuts, the height of the electric heating element can be adjusted, changing the distance between it and the periphery of the oil bottle.
[0039] In this embodiment of the utility model, the internal vertical space of the hot air duct gradually narrows along the hot air flow direction, while the internal left and right space gradually widens along the hot air flow direction.
[0040] In this embodiment of the utility model, the air inlet of the hot air pipe is connected to the hair dryer 15, and the hair dryer is fixedly connected to the base plate 16.
[0041] In this embodiment of the utility model, the top, left and right sides of the hot air duct are protected by a U-shaped cover 17, and the bottom of the left and right sides of the cover are screwed and locked to the base plate.
[0042] In this embodiment of the present invention, the second adjustment component includes an L-shaped swing plate 18. The top surface of the swing plate is fixedly connected to the base plate. The part of the top surface of the swing plate near its corner is hinged to a base frame 20 via a hinge shaft 19. A fastening structure is connected between the base frame and the side of the swing plate.
[0043] In this embodiment of the utility model, the fastening structure includes a screw 21, one end of which is hinged to the base frame, and the other end passes through the second groove 22 opened on the side of the swing plate, and locking nuts are screwed onto the screws on both sides of the second groove.
[0044] By tightening or loosening the nut on the screw, the up-and-down swing of the swing plate can be adjusted, thereby changing the blowing angle of the hot air duct outlet.
[0045] In this embodiment of the utility model, the base frame is L-shaped, and stiffening ribs 23 are fixedly connected between its vertical and horizontal parts.
[0046] In this embodiment of the utility model, the end face of the electric turntable is located on a vertical plane and is driven by a first motor to rotate intermittently by 90°; the inner ends of the active sleeve shafts are all mounted on the end face of the electric turntable and are driven by a second motor to rotate; the outer ends of the active sleeve shafts are all suspended; the axial direction of the active sleeve shafts is parallel to the axial direction of the electric turntable.
[0047] In this embodiment of the invention, the heat transfer preheating mechanism for the oil bottle is provided with a first preheating component and a second preheating component. The first preheating component preheats the outer surface of the oil bottle in a first stage using a first temperature, and the second preheating component further heats the outer surface of the oil bottle in a second stage using a second temperature, thereby achieving:
[0048] 1. The original single preheating head is used to concentrate high-temperature heating in one go, which is then divided into two gradient stages, so that the oil bottle gradually heats up under the first and second temperature gradients. When the oil bottle faces the higher second temperature, the temperature difference between the oil bottle and the second temperature is smaller because the oil bottle has already been preheated by the first temperature, making the oil bottle less likely to deform due to a sudden increase in temperature.
[0049] 2. The original single preheating head is divided into two gradient stages for centralized high-temperature heating. While the second preheating component is preheating the previous oil bottle, the first preheating component is simultaneously preheating the next oil bottle. This allows each oil bottle to undergo two preheating stages in a short preheating time (usually only 2-5 seconds), with gradual temperature increase. This facilitates uniform heat penetration in a short time and makes the circumferential surface of the bottle more uniformly preheated.
[0050] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.
Claims
1. A heat transfer preheating mechanism for oil bottles, comprising an electric turntable, wherein four active shafts for coaxially mounting oil bottles are evenly distributed around the circumference of the electric turntable, characterized in that: A first preheating component is provided directly below the bottommost active sleeve shaft of the electric turntable, and a second preheating component is provided on the outer side of the leftmost or rightmost active sleeve shaft of the electric turntable. The first preheating component includes an arc-shaped electric heating element, which is driven to be raised and lowered by a first adjustment component; The second preheating component includes a hot air pipe for discharging hot air. The hot air pipe has a narrow strip-shaped air outlet on the end side near the oil bottle. The length direction of the air outlet is parallel to the axial direction of the oil bottle. The hot air pipe is driven by the second adjustment component to swing up and down. The projected area of the electric heating element on its corresponding oil bottle is larger than the projected area of the air outlet on its corresponding oil bottle.
2. The oil bottle heat transfer preheating mechanism according to claim 1, characterized in that: A heat insulation plate is fixedly connected to the bottom of the electric heating element, and a first connecting plate is fixedly connected to the bottom of the heat insulation plate. A second connecting plate is screwed onto the first connecting plate, and the bottom of the second connecting plate is fixedly connected to the frame.
3. The oil bottle heat transfer preheating mechanism according to claim 2, characterized in that: The first adjustment component includes a vertically extending first groove formed on the first and second connecting plates. A bolt is threaded through the first groove of the first and second connecting plates, and a nut is screwed onto the bolt.
4. The oil bottle heat transfer preheating mechanism according to claim 1, characterized in that: The internal vertical space of the hot air duct gradually narrows along the direction of hot air flow, while the internal horizontal space gradually widens along the direction of hot air flow.
5. The oil bottle heat transfer preheating mechanism according to claim 1, characterized in that: The air inlet of the hot air pipe is connected to a hair dryer, which is fixedly connected to the base plate.
6. The oil bottle heat transfer preheating mechanism according to claim 5, characterized in that: The top, left, and right sides of the hot air duct are protected by a U-shaped cover, and the bottom of the left and right sides of the cover are screwed and locked to the base plate.
7. The oil bottle heat transfer preheating mechanism according to claim 5, characterized in that: The second adjustment component includes an L-shaped swing plate, the top surface of which is fixedly connected to the base plate. The top surface of the swing plate near its corner is hinged to a base frame via a hinge shaft. A fastening structure connects the base frame and the side of the swing plate.
8. The oil bottle heat transfer preheating mechanism according to claim 7, characterized in that: The fastening structure includes a screw, one end of which is hinged to the base frame, and the other end passes through a second groove on the side of the swing plate, with locking nuts screwed onto the screws on both sides of the second groove.
9. The oil bottle heat transfer preheating mechanism according to claim 7, characterized in that: The base frame is L-shaped, and stiffening ribs are fixedly connected between its vertical and horizontal parts.
10. The oil bottle heat transfer preheating mechanism according to claim 1, characterized in that: The end face of the electric turntable is located on a vertical plane and is driven by a first motor to rotate intermittently by 90°. The inner ends of the active sleeve shafts are all mounted on the end face of the electric turntable and are driven by a second motor to rotate. The outer ends of the active sleeve shafts are all suspended in the air. The axial direction of the active sleeve shafts is parallel to the axial direction of the electric turntable.